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What is Wastewater and How is It Treated?



What is Wastewater and How is It Treated?

Did you know that humans create 1.6 billion tons of wastewater each year?

Wastewater refers to the water in homes, businesses, and industries that is no longer clean enough to reuse without being treated. This water can contain anything from garbage to sewage which makes it unsanitary and dangerous to the environment.

If you’re interested in learning more about what is wastewater and how is it treated, then read on. In this article, we’ll tell you everything you need to know about wastewater treatment.

What Is Wastewater?

Wastewater is any water that has been used or any water that has come into contact with materials that can contaminate it. Wastewater comes from many places, such as:

  • homes
  • factories
  • farms

This water typically contains a range of different pollutants. This must be removed, stored in industrial wastewater tanks, or treated before the water can safely be returned to the environment.

The Treatment Process of Wastewater

The treatment process of wastewater is a multi-step process aimed at reducing pollutants in wastewater. That way, it can be discharged safely into the environment. The treatment process of wastewater involves several stages of physical, chemical, and biological processes.


Wastewater is created from water used in industrial, commercial, and municipal operations. Wastewater needs to be treated so that it doesn’t get into freshwater sources and destroy the environment. Also, cause health problems.

Filtration is an important part of the wastewater treatment process. Filtration removes suspended particles and dissolved contaminants from wastewater, ensuring improved water quality.

The most common type of filtration used for wastewater is known as granular media filtration. This removes solids from wastewater by trapping the particles on the filter media. Granular media filtration uses a rapid flow rate to ensure efficient removal and uses a sand or gravel filter bed.

Biological Treatment

Biological treatment is one method used to treat wastewater. It is the natural process of using living organisms. This includes bacteria and microorganisms to break down organic contaminants in wastewater.

This process helps get rid of dangerous pollutants in wastewater and lowers the risk of getting sick from the water. In the biological cleaning process, microorganisms are put into wastewater, and oxygen is added to make a place for them to grow.

The microorganisms will then consume the organic matter from the wastewater. This breaks it down into simpler compounds like carbon dioxide and ammonia. Eventually making it safe to discharge into local rivers.

Chemical Treatment

Chemical treatment of wastewater involves adding compounds. These are acids, alkalis, and salts to it to separate, neutralize, or deactivate contaminants. This can, for example, remove metals from wastewater and help separate solids from liquid.

Additionally, the chemical addition can reduce the concentration of different pathogens. The resulting wastewater is then removed from the area and treated further to render it safe for reuse. In short, chemical treatment of wastewater includes adding different substances to it. This is to separate, neutralize, or deactivate contaminants to make the water safe for reuse.

The Treatment Process of Wastewater

Wastewater is a valuable resource that should be treated and reused responsibly. With the right treatment, wastewater can be an asset to our communities and help us better manage our water resources for the future.

Take a look at local wastewater treatment facilities to find out how your community is managing its wastewater.

For more informative topics, check out the rest of our site!